맨홀

김재중

— Bong Pil

Uee

— Kang Soo Jin

차선우

— Jo Seok Tae

정혜성

— Oh Jin Suk

주진모

— Bong Pil's father

김혜옥

— Bong Pil's mother

Seo Hyun-chul

— Soo Jin's father

이연경

— Soo Jin's mother

Kang Hong-suk

— Bong Pil's friend

Seo Min-ji

— Bong Pil's friend

Jang Mi-kwan

— Kang Jae Hyun [Soo Jin's fiance]

Lee Sang-yi

— Oh Dal-Soo

서영

Kim Young-ok

정인기

Woo Hyun

— Suk Tae's father

Jin Hyun-kwang

— Studio President

조서후

— Yoon-mi

Baek Sang-hee

— Blind date